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Fire Emblem Heroes (FEH)

Oath of Ostia: Best Fodder, Best Units to Inherit

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Here you can see how to get Oath of Ostia, a Passive A skill in Fire Emblem Heroes (FEH). Check out Oath of Ostia, Oath of Ostia's effects, units with Oath of Ostia, as well as Inherit Skill Information!

List of Contents

Oath of Ostia Effect and Basic Information

Basic Information

Skill
Oath of Ostia Fire Emblem Heroes FEHOath of Ostia
Type
Passive Skill A IconPassive Skill A
Effect Grants HP+5.
After unit acts (if Canto triggers, after Canto), or, if defending in Aether Raids, at the start of enemy phase, applies 【Divine Vein (Stone)】 to unit's space and spaces within 2 spaces of unit for 1 turn.
If foe initiates combat or foe's HP ≥ 75% at start of combat, inflicts Atk/Def-10 on foe, grants Special cooldown count-2 to unit before foe's first attack, and reduces the percentage of foe's non-Special "reduce damage by X%" skills by 50% during combat (excluding area-of-effect Specials).
Required SP 300
Sacred Seal None

Skill Family

Oath of Ostia Fire Emblem Heroes FEHOath of Ostia

Oath of Ostia Rating

Rating 9.5/10.0 Ranking S Rank

Inherit Skill Restrictions for Oath of Ostia

Units able to Inherit Oath of Ostia

Inheritable? Move Type that can Inherit this Skill
No -
Weapon Type that can Inherit this Skill
-

Units who have Oath of Ostia as Fodder

Hero Name Learns At
FEH icon Attuned Hector 5★

Which Units Should Inherit?

This skill is present in builds for the heroes listed below. Check out their pages to find out how to use this skill with these heroes!

This skill cannot be Inherited!

Oath of Ostia is an Exclusive Skill, so it cannot be learned through Inherit Skill.

Related Links

Skills Related Links Fire Emblem Heroes FEH

Skills: Related Links

Weapon Skill IconWeapon Skills Assist Skill IconAssist Skills Special Skill IconSpecial Skills
Passive A Skill IconPassive A Skills Passive B Skill IconPassive B Skills Passive C Skill IconPassive C Skills
Sacred Seal IconSacred Seals Attuned Skill IconAttuned Skills Emblem IconEmblems

Skills Tier List

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